正五边形表面积计算 by Axel Ramirez

GeoGebra 命令及参数

1. Polygon(B, C, 5) → poly1, f, g, h, i, j, D, E, F
2. Midpoint(i) → G
3. Midpoint(h) → H
4. OrthogonalLine(G, i) → k
5. OrthogonalLine(H, h) → l
6. Intersect(k, l) → I
7. Point(zAxis) → A
8. Pyramid(poly1, A) → a, faceABC, edgeAF, faceACD, faceADE, faceAEF, faceABF, edgeAB, edgeAC, edgeAD, edgeAE
9. Net(a, b) → c, J, S, faceJKLMN, faceJKO, faceKLP, faceLMQ, faceMNR, faceJNS, edgeJK, edgeKL, edgeLM, K, edgeMN, edgeJN, edgeJO, edgeKO, edgeKP, edgeLP, edgeLQ, edgeMQ, edgeMR, edgeNR, L, edgeNS, edgeJS, M, N, O, P, Q, R
10. PointIn(faceJKLMN) → PointfaceJKLMN
11. PointIn(faceLMQ) → PointfaceLMQ
12. PointIn(faceMNR) → PointfaceMNR
13. PointIn(faceJNS) → PointfaceJNS
14. PointIn(faceJKO) → PointfaceJKO
15. PointIn(faceKLP) → PointfaceKLP